DOCUMENT:Q121822 13-JUN-2001 [sna] TITLE :Deadlocks When Using Asynchronous Named Pipes PRODUCT :Microsoft SNA Server PROD/VER:WINDOWS:2.0,2.1; winnt:3.5 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - the operating system: Microsoft Windows NT 3.5 - Microsoft SNA Server, versions 2.0, 2.1, on platform(s): - the operating system: Microsoft Windows NT ------------------------------------------------------------------------------- SYMPTOMS ======== When Windows NT Workstation and Windows NT Server version 3.5 are stressed by asynchronous named pipes, such as by Microsoft SNA Server for Windows NT, the Windows NT redirector (RDR.SYS) doesn't create enough worker threads fast enough and system deadlock occurs. CAUSE ===== STATUS ====== Microsoft has confirmed this to be a problem in Windows NT Workstation and Windows NT Server version 3.5. This problem was corrected in the latest U.S. Service Pack for Windows NT version 3.5. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces): S E R V P A C K Additional query words: prodnt prodsna ====================================================================== Keywords : Technology : kbAudDeveloper kbOSWinSearch kbSNAServSearch kbOSWinNTSearch Version : WINDOWS:2.0,2.1; winnt:3.5 Issue type : kbbug Solution Type : kbfix ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.